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Proving congruent

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Nialllovespie:
If all the angles of a quadrilateral are 90 degrees, does that mean both sides are parrallel?

Thanks, Nia

RuiAce:

--- Quote from: Nialllovespie on March 12, 2017, 07:49:34 am ---If all the angles of a quadrilateral are 90 degrees, does that mean both sides are parrallel?

Thanks, Nia

--- End quote ---
Yes, because if all 4 angles are 90 degrees then you automatically know that it's a rectangle. Opposite sides of a rectangle are always parallel.

This question isn't really related to congruence though.

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